WORKPIECE FOLDING DEVICE

A method and apparatus for flipping and folding a pliable workpiece, such as a pre-hemmed sleeve blank, along a desired fold axis. A workpiece is conveyed past a flipping roller and down against a clamp bar wherein it is clamped at a predetermined time by a lower hem guide. The flipping roller is sp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	STEPHEN RUDERMAN, MAXIMILIAN ADAMSKI
Format:	Patent
Sprache:	eng
Schlagworte:	APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FORDRESS-MAKING, FOR TAILORING, NOT OTHERWISE PROVIDED FOR CONVEYING EMBROIDERING HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES HUMAN NECESSITIES PACKING PERFORMING OPERATIONS SEWING STORING TEXTILES TRANSPORTING TUFTING WEARING APPAREL
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Beschreibung
Zusammenfassung:	A method and apparatus for flipping and folding a pliable workpiece, such as a pre-hemmed sleeve blank, along a desired fold axis. A workpiece is conveyed past a flipping roller and down against a clamp bar wherein it is clamped at a predetermined time by a lower hem guide. The flipping roller is sped to impart linear momentum to the unclamped, trailing portion of the workpiece. The flipping action serves to re-orient the workpiece from a right side-up orientation to an inside-out orientation so as to properly present the workpiece for subsequent seaming or stitching operations. A sensor is provided to determine the length of the workpiece so as to enable the device to clamp the workpiece about any desired fold axis.